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This project aims to determine the characteristics of a wireless communication channel in city-street-canyon scenarios. The channel of a typical city intersection is modeled with a ray tracer and measured with a channel sounder. Then, the results of both tools are compared in terms of the local scattering function. The channel sounder utilized for the project was initially developed by Rui Wang et

Examensarbetet utfördes som en del av projektet Ecoist hos Sirgomez Engineering AB, med målet att reducera komplexiteten och massan av den nuvarande uprighten i främre hjulupphängningen, genom att ta fram en ny bestående av en komponent, samtidigt som hänsyn även tas till aspekter som tillförlitlighet och tillverkningsbarhet. För att uppnå detta användes topologioptimering. Indata till optimeringeThe master thesis was carried out as a part of the project Ecoist at Sirgomez Engineering AB, with the goal of reducing the complexity and mass of the current front suspension upright by designing a new upright from one piece, whilst also considering other aspects such as reliability and manufacturability. In order to achieve this, topology optimization was used. The inputs for the optimization ne

In the Convention on the Rights of the Child, the European Convention, Swedish law and guidelines there are certain rights regarding juveniles suspected of a crime being interrogated by the police. The aim of this bachelor thesis is to develop a broader understanding about possible failures in upholding those rights. Further, what possible consequences it could mean for the suspected juveniles an

Green roofs are becoming increasingly more popular due to the fact of their many benefits. The aim of this report is to investigate the level of fire safety in extensive green roofs, which includes a variety of sedum, herbs and grass, in urban environments. Research is also done to clarify which parameters are affecting fire spread on extensive green roofs and to which extent. The objective was to

Syftet med studien är att skapa en nyanserad bild och utöka förståelsen för vilken betydelse en stark företagskultur har i en organisationsförändring utifrån anställdas perspektiv. Uppsatsen grundar sig i teorier kring företagskultur och förändringsprocesser inom organisationer samt hur dessa samverkar i tidigare forskning. Det empiriska materialet är baserat på tio intervjuer med medarbetare ochThe purpose of this study is to create a nuanced picture of what significance a strong corporate culture has in an organisational change through the perspective of an employee. The study is divided in two theoretical perspective where both previous research about organisational culture and organisational change are discussed and how the two are connected. The empirical data is based upon ten int

This thesis discusses the landscape changes of Helsingborg municipality in Scania, southern Sweden. The aim of this thesis is to compare the occurrence of wetlands in the early 1800’s with the contemporary occurrence. The findings will be presented from three angles: the total wetland area, presence of different wetland types, and spatial distribution of the wetlands. To assess this change over ti

Undersökning av två ytmarkörers uttryck i mantelcellslymfomceller öppnar möjligheter för målinriktad cancerbehandling. Proteinerna CD44 och CD69 tillverkas i högre utsträckning i en minoritet av cancercellerna i mantelcellslymfom. Dessa cancerceller är kända för att vara svårbehandlade och tros ligga bakom den höga andel återfall som är förknippad med sjukdomen. Genom att undersöka dessa proteineThe B-cell lymphoma (BCL) subtype, mantle cell lymphoma (MCL) is a lymphoid malignancy associated with high risk of relapses and an overall poor prognosis. The relapses are believed to be the result of a treatment resistant sub-population harbouring stem cell like properties. One way to isolate and identify such cells is through analysis of the side population (SP) by staining with Hoechst 33342.

Gender equality and empowerment of women and girls were presented at the Sustainable Development Goals (SDG5) by the United Nations. It has been realized that empowerment of women plays a crucial role in development. This study examines the empowerment process of rural migrant women in China. It first describes the registration house system called hukou and general gender roles in China. This rese

NDVI(Normalized Difference Vegetation Index) was introduced in 1974. Despite its limitations, it has been under use for monitoring bio-physical and cultural landscapes from satellite. The present study employed MODIS based NDVI to examine trends of greenness and its link with LULC (land use/land cover) change and rainfall in Addis Ababa and its surrounding (covering 1,217 sq km) over a period of 1

Idag når vi i Sverige inte upp till miljömålet ”Grundvatten av god kvalitet”, en av orsakerna är bristande grundvattenkunskaper i samhället. Kontrollen av föroreningar är otillräcklig och det har under den senaste tiden uppmärksammats att vi har brist på vatten i stora delar av landet. På Revingehed ca 2 mil öster om Lund finns en provpumpningsanläggning som används för utbildning av framtida grunSweden do not meet the environmental objective "Good quality groundwater", one of the reasons is the poor general understanding of groundwater. The control of pollutions is insufficient and it has recently been noted that the storage of water in large areas of the country is inadequate. At Revingehed about 2 kilometers east of Lund, there are several pump wells that is used for education

According to the United Nations, half of humanity now lives in cities. In recent years, many countries have seen a rise in the number of and intensity of heavy rainfall events due to the effects of climate change. The consequences of urban flooding in such a context can vary between just causing mild discomfort to tremendous devastation. Building cities that can resist flood is quickly becoming an

Samhällets minoritetsgrupper har historiskt sett varit utsatta för misskreditering och diskriminering av olika slag. I denna uppsats har speciellt fokus lagts på den minoritetsgrupp som utgörs av de tusentals afghanska ungdomar som sökt eller söker asyl i Sverige. Syftet med uppsatsen har varit att studera hur individer i denna grupp upplever och hanterar stigma i sin vardag. Det empiriska underla

I takt med att miljö och hållbarhet blir alltmer prioriterade frågor för samhället kommer marknaden för biobränslen och energi producerad från biobränslen öka. Genom ökad konkurrens bland energiproducenter skapas ett större krav på lagerhantering som är en grundläggande kompetens för företag. Lager och lagerhanteringen har direkt påverkan på resultatet och därmed hur konkurrenskraftigt företaget ä

This thesis considers the problem of improving the performance of observed time difference of arrival (OTDOA) based positioning for Narrowband Internet of Things (NB-IoT). A new iterative low-complexity algorithm based on expectation maximization successive interference cancellation (EM-SIC) is presented. The algorithm tackles the near-far problem by using an iterative SIC, where for each received

The migration debate is discussed globally in today’s society, and countries have chosen to deal with placement of migration in different ways. Australia has demonstrated a unique way of handling migrants through their two policies. One of them places and processes migrants on the islands of Manus and Nauru in the last decade instead of conducting this vetting process on their own soil. This offsh

The aim of this study is to investigate human behavior during the pre-movement phase of building evacuation and determine how pre-movement time varies between different building types and types of alarms. Unannounced videorecorded evacuation experiments from earlier studies were examined, which resulted in 2 486 individual pre-movement times divided amongst six different building types. The parts

In several regions of today's Europe there is an increased activity for socio-political self-government or total independence. The European Free Alliance (EFA) is a transnational European party that represent many of these regions at a supranational level. As the party brings together regions with strong national and regional identities and constitutes an ideological platform for meetings betw

Framtagning av nya produkter som är konkurrenskraftiga ur ett helhetsperspektiv kräver att flera olika avdelningar och kompetenser samverkar. Examensarbetet studerar hur detta kan genomföras på bästa sätt. Begreppet tvärfunktionell samverkan definieras som: Hur väl olika funktioner arbetar mot ett gemensamt mål. Projektet undersöker hur svenska företag ser på tvärfunktionell samverkan, vilka konkNew product development requires the cooperation of several departments and competences to create competitive products from a holistic perspective. This master thesis studies how Swedish companies’ view cross-functional cooperation, the competitive advantages with cross-functional cooperation and examine the prerequisites to achieve well-functioning cross-functional cooperation. Cross-functional c

I en teoretisk studie har användbarheten av thermosyphoner för att förbättra säkerheten och effektiviseringen av kemiska reaktorer. Thermosyphoner är en simpel form av en ”heat pipe”, ett ihåligt och slutet rör som är delvis fyllt av en fluid. Om röret värms upp till fluidens kokpunkt inleds en inre fasomvandling vilket används för att förbättra rörets värmeledningsförmåga. Tre simuleringsmodellerIn a theoretical study the use of thermosyphons to improve the safety and efficiency of chem-ical reactors have been evaluated. Thermosyphons is a simple form of a “heat pipe”, a hollow and closed tube that’s partially filled with a fluid. When the pipe is heated up to the boiling temperature of the fluid within a phase change is initiated. The phase-change is used to im-prove the thermal conducti